Size batteries, solar, inverter, and shore-power strategy for life on the road
This hub keeps RV and van planning centered on boondocking needs, AC vs DC loads, and real mobile-system constraints.
Plan around battery autonomy, AC loads, roof space, and campsite service.
Battery, inverter, shore-power, generator, and van-solar planning.
Turn rough travel plans into a practical mobile power system.
Start with the RV or van decision you are making
Use these tools when your main constraint is limited roof space, battery weight, campsite amperage, or time off-grid.
How much battery do I need to boondock?
Size amp hours around daily consumption and battery chemistry.
Start here →I need a complete van solar system spec
Get a first-pass battery, solar, controller, and inverter recommendation.
Start here →What can I run on shore power?
Check 30A vs 50A service and where startup surge becomes the limiting factor.
Start here →Road-ready power tools for battery, solar, and campsite decisions
Use these tools when your main constraint is limited roof space, battery weight, campsite amperage, or time off-grid.
RV Battery Sizing Calculator
Calculate an RV battery bank in amp hours for boondocking and off-grid travel.
Van Life Solar Calculator
Get a complete van power system spec with battery, solar, controller, and inverter.
RV Inverter Calculator
Find the right inverter size for AC loads in an RV or van build.
Shore Power Calculator
Check what you can run on 30A vs 50A service and where surge becomes a problem.
Generator Sizing Calculator
Size a generator for RV or home backup with matched models.
Use this hub when the decision is bigger than one formula
Use these tools when your main constraint is limited roof space, battery weight, campsite amperage, or time off-grid. If you already know the exact calculation you need, jump into one tool below. If you are still comparing paths, start with the scenario cards and use the supporting guidance on this page to narrow the right direction before you run numbers in detail.
Use the right tool for the right decision
These pages work best when you start from the decision you are actually making instead of browsing every calculator in parallel.
Start with battery sizing if you are boondocking
Energy storage is usually the first hard limit in a mobile system, especially when you already know your key loads.
Treat AC loads differently from native 12V loads
Inverter sizing and generator sizing should be based on the loads that actually run through those devices.
Roof space and charging windows change the answer fast
The smaller the build, the more aggressively solar geometry and charging method drive the result.